(CNN) -- With more than 6,000 years of history, China's ancient capital of Nanjing has been the birthplace of many of the country's most intriguing traditional arts. Today, a handful of skilled artisans are keeping these endangered practices alive. Sophisticated and elegant yet not exclusive to the wealthy, these six Nanjing art forms offer insight into China's diverse yet dwindling collection of intangible attractions that, for the most part, remain hidden behind studio doors. CNN sent Sun Chen, a Nanjing-based photographer, to visit six studios in the city and talk with the artisans. Engraved Buddhist scrolls Sitting in a traditional Chinese building with a scenic garden, Nanjing's Jinling Buddhism Publishing House was founded in 1866 by a Buddhist scholar.

The folk craft prospers in Nanjing thanks to the generous supply of silk scraps left from making brocade -- another well established handicraft in
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Nanjing.


(CNN) -- For most of the year London's O2 Arena, located on the south bank of the famous River Thames, plays host to the world's biggest music acts. But since 2009, the venue has also spent one week in November staging tennis' season-ending showpiece -- the ATP World Tour Finals. The event pits the world's top eight male tennis players and doubles pairings against each other in a round-robin contest, with an unbeaten winner pocketing a check for $1.63 million. But before the elite of the game can do battle on the court, the O2 must be transformed from a concert venue to a world-class tennis facility. That's where World Tour Finals tournament director Chris Kermode and his team come in.

"
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Rihanna was here on Tuesday night until midnight and we moved in at 1am in the morning on Wednesday.


(CNN) -- The stage is set for another classic men's grand slam final on Sunday after Novak Djokovic and Rafael Nadal set up a French Open showdown with much more than just the title at stake. World No. 1 Djokovic will seek to become the first man since 1969 to hold all four majors at the same time, and only the third ever, while second-ranked Nadal is aiming for a record seventh crown at Roland Garros. Djokovic is through to the Paris final for the first time after avenging last year's semi defeat against the man who ended his 43-match winning streak, Roger Federer.

"It's a dream to be in the final, but
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Nadal, who always plays so well here, will be the favorite."